Some people prefer smoothness over blazing speed. I pulled a Tribute with both smooth and speed modules at the shop the other day, both set on 70. The speed module felt like 70, the smoot didn't *quite* feel like 70. Take an Oneida, just as an example. They are so smooth that on average they *feel* 12 pounds lighter than what they really are. So in Bowtechs case, you can potentially shoot higher poundage with the smooth mod but it feels like what you were shooting before you cranked it up some. Get what Im trying to say?